4-30 System Programming
4.2.3 Class of Service (COS)
Specifies the COS number which you are going to
program.
Specifies the Toll Restriction level (1-8) for each COS
number in Day / Night mode respectively.
Specifies whether to restrict the duration of outside
calls or not.
[Notes]
• If set to “Yes,” the system disconnects a CO call
originated or answered by the programmed extension
user when the time specified by “Extension-to-CO
Line Call Duration Time (1-64)”(See Section 4.2.4)
expires.
• This setting may apply to “Outgoing CO calls only”
or “Both incoming and outgoing CO calls” depending
on “5.Limited Call Duration” setting (See Section
4.2.7).
Used to assign the Class of Service (COS) parameters.
Parameter
Value Range
(default)
Description/Function Reference
COS No.
Sec. 4.2.2
Toll
Restriction
Override
(F/G)
None
1-96
(1)
1 - 8
(1)
1. Yes
2. No
(No)
COS No.
TRS Level
Time Limit of
Outside Calls
Day
Night